hevc.h File Reference

#include "libavutil/buffer.h"
#include "libavutil/md5.h"
#include "avcodec.h"
#include "bswapdsp.h"
#include "cabac.h"
#include "get_bits.h"
#include "hevcpred.h"
#include "hevcdsp.h"
#include "internal.h"
#include "thread.h"
#include "videodsp.h"

Go to the source code of this file.

Data Structures
struct	ShortTermRPS
struct	LongTermRPS
struct	RefPicList
struct	RefPicListTab
struct	HEVCWindow
struct	VUI
struct	PTLCommon
struct	PTL
struct	HEVCVPS
struct	ScalingList
struct	HEVCSPS
struct	HEVCPPS
struct	HEVCParamSets
struct	SliceHeader
struct	CodingUnit
struct	Mv
struct	MvField
struct	NeighbourAvailable
struct	PredictionUnit
struct	TransformUnit
struct	DBParams
struct	HEVCFrame
struct	HEVCNAL
struct	HEVCPacket
struct	HEVCLocalContext
struct	HEVCContext

Macros
#define	MAX_DPB_SIZE   16
#define	MAX_REFS   16
#define	MAX_NB_THREADS   16
#define	SHIFT_CTB_WPP   2
#define	MAX_SUB_LAYERS   7
	7.4.2.1 More...
#define	MAX_VPS_COUNT   16
#define	MAX_SPS_COUNT   32
#define	MAX_PPS_COUNT   256
#define	MAX_SHORT_TERM_RPS_COUNT   64
#define	MAX_CU_SIZE   128
#define	MAX_TRANSFORM_DEPTH   5
#define	MAX_TB_SIZE   32
#define	MAX_LOG2_CTB_SIZE   6
#define	MAX_QP   51
#define	DEFAULT_INTRA_TC_OFFSET   2
#define	HEVC_CONTEXTS   199
#define	MRG_MAX_NUM_CANDS   5
#define	L0   0
#define	L1   1
#define	EPEL_EXTRA_BEFORE   1
#define	EPEL_EXTRA_AFTER   2
#define	EPEL_EXTRA   3
#define	QPEL_EXTRA_BEFORE   3
#define	QPEL_EXTRA_AFTER   4
#define	QPEL_EXTRA   7
#define	EDGE_EMU_BUFFER_STRIDE   80
#define	SAMPLE(tab, x, y)   ((tab)[(y) * s->sps->width + (x)])
	Value of the luma sample at position (x, y) in the 2D array tab. More...
#define	SAMPLE_CTB(tab, x, y)   ((tab)[(y) * min_cb_width + (x)])
#define	IS_IDR(s)   ((s)->nal_unit_type == NAL_IDR_W_RADL || (s)->nal_unit_type == NAL_IDR_N_LP)
#define	IS_BLA(s)
#define	IS_IRAP(s)   ((s)->nal_unit_type >= 16 && (s)->nal_unit_type <= 23)
#define	HEVC_FRAME_FLAG_OUTPUT   (1 << 0)
#define	HEVC_FRAME_FLAG_SHORT_REF   (1 << 1)
#define	HEVC_FRAME_FLAG_LONG_REF   (1 << 2)
#define	HEVC_FRAME_FLAG_BUMPING   (1 << 3)
#define	BOUNDARY_LEFT_SLICE   (1 << 0)
#define	BOUNDARY_LEFT_TILE   (1 << 1)
#define	BOUNDARY_UPPER_SLICE   (1 << 2)
#define	BOUNDARY_UPPER_TILE   (1 << 3)

Enumerations
enum	NALUnitType {   NAL_TRAIL_N = 0, NAL_TRAIL_R = 1, NAL_TSA_N = 2, NAL_TSA_R = 3,   NAL_STSA_N = 4, NAL_STSA_R = 5, NAL_RADL_N = 6, NAL_RADL_R = 7,   NAL_RASL_N = 8, NAL_RASL_R = 9, NAL_BLA_W_LP = 16, NAL_BLA_W_RADL = 17,   NAL_BLA_N_LP = 18, NAL_IDR_W_RADL = 19, NAL_IDR_N_LP = 20, NAL_CRA_NUT = 21,   NAL_VPS = 32, NAL_SPS = 33, NAL_PPS = 34, NAL_AUD = 35,   NAL_EOS_NUT = 36, NAL_EOB_NUT = 37, NAL_FD_NUT = 38, NAL_SEI_PREFIX = 39,   NAL_SEI_SUFFIX = 40 }
	Table 7-3: NAL unit type codes. More...
enum	RPSType {   ST_CURR_BEF = 0, ST_CURR_AFT, ST_FOLL, LT_CURR,   LT_FOLL, NB_RPS_TYPE }
enum	SliceType { B_SLICE = 0, P_SLICE = 1, I_SLICE = 2 }
enum	SyntaxElement {   SAO_MERGE_FLAG = 0, SAO_TYPE_IDX, SAO_EO_CLASS, SAO_BAND_POSITION,   SAO_OFFSET_ABS, SAO_OFFSET_SIGN, END_OF_SLICE_FLAG, SPLIT_CODING_UNIT_FLAG,   CU_TRANSQUANT_BYPASS_FLAG, SKIP_FLAG, CU_QP_DELTA, PRED_MODE_FLAG,   PART_MODE, PCM_FLAG, PREV_INTRA_LUMA_PRED_FLAG, MPM_IDX,   REM_INTRA_LUMA_PRED_MODE, INTRA_CHROMA_PRED_MODE, MERGE_FLAG, MERGE_IDX,   INTER_PRED_IDC, REF_IDX_L0, REF_IDX_L1, ABS_MVD_GREATER0_FLAG,   ABS_MVD_GREATER1_FLAG, ABS_MVD_MINUS2, MVD_SIGN_FLAG, MVP_LX_FLAG,   NO_RESIDUAL_DATA_FLAG, SPLIT_TRANSFORM_FLAG, CBF_LUMA, CBF_CB_CR,   TRANSFORM_SKIP_FLAG, EXPLICIT_RDPCM_FLAG, EXPLICIT_RDPCM_DIR_FLAG, LAST_SIGNIFICANT_COEFF_X_PREFIX,   LAST_SIGNIFICANT_COEFF_Y_PREFIX, LAST_SIGNIFICANT_COEFF_X_SUFFIX, LAST_SIGNIFICANT_COEFF_Y_SUFFIX, SIGNIFICANT_COEFF_GROUP_FLAG,   SIGNIFICANT_COEFF_FLAG, COEFF_ABS_LEVEL_GREATER1_FLAG, COEFF_ABS_LEVEL_GREATER2_FLAG, COEFF_ABS_LEVEL_REMAINING,   COEFF_SIGN_FLAG, LOG2_RES_SCALE_ABS, RES_SCALE_SIGN_FLAG, CU_CHROMA_QP_OFFSET_FLAG,   CU_CHROMA_QP_OFFSET_IDX }
enum	PartMode {   PART_2Nx2N = 0, PART_2NxN = 1, PART_Nx2N = 2, PART_NxN = 3,   PART_2NxnU = 4, PART_2NxnD = 5, PART_nLx2N = 6, PART_nRx2N = 7 }
enum	PredMode { MODE_INTER = 0, MODE_INTRA, MODE_SKIP }
enum	InterPredIdc { PRED_L0 = 0, PRED_L1, PRED_BI }
enum	PredFlag { PF_INTRA = 0, PF_L0, PF_L1, PF_BI }
enum	IntraPredMode {   INTRA_PLANAR = 0, INTRA_DC, INTRA_ANGULAR_2, INTRA_ANGULAR_3,   INTRA_ANGULAR_4, INTRA_ANGULAR_5, INTRA_ANGULAR_6, INTRA_ANGULAR_7,   INTRA_ANGULAR_8, INTRA_ANGULAR_9, INTRA_ANGULAR_10, INTRA_ANGULAR_11,   INTRA_ANGULAR_12, INTRA_ANGULAR_13, INTRA_ANGULAR_14, INTRA_ANGULAR_15,   INTRA_ANGULAR_16, INTRA_ANGULAR_17, INTRA_ANGULAR_18, INTRA_ANGULAR_19,   INTRA_ANGULAR_20, INTRA_ANGULAR_21, INTRA_ANGULAR_22, INTRA_ANGULAR_23,   INTRA_ANGULAR_24, INTRA_ANGULAR_25, INTRA_ANGULAR_26, INTRA_ANGULAR_27,   INTRA_ANGULAR_28, INTRA_ANGULAR_29, INTRA_ANGULAR_30, INTRA_ANGULAR_31,   INTRA_ANGULAR_32, INTRA_ANGULAR_33, INTRA_ANGULAR_34, VERT_PRED,   HOR_PRED, DC_PRED, DIAG_DOWN_LEFT_PRED, DIAG_DOWN_RIGHT_PRED,   VERT_RIGHT_PRED, HOR_DOWN_PRED, VERT_LEFT_PRED, HOR_UP_PRED,   TM_VP8_PRED, LEFT_DC_PRED, TOP_DC_PRED, DC_128_PRED,   DC_127_PRED, DC_129_PRED, N_INTRA_PRED_MODES }
enum	SAOType { SAO_NOT_APPLIED = 0, SAO_BAND, SAO_EDGE, SAO_APPLIED }
enum	SAOEOClass { SAO_EO_HORIZ = 0, SAO_EO_VERT, SAO_EO_135D, SAO_EO_45D }
enum	ScanType { SCAN_DIAG = 0, SCAN_HORIZ, SCAN_VERT }

Functions
int	ff_hevc_decode_short_term_rps (GetBitContext *gb, AVCodecContext *avctx, ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
int	ff_hevc_parse_sps (HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id, int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
	Parse the SPS from the bitstream into the provided HEVCSPS struct. More...
int	ff_hevc_decode_nal_vps (GetBitContext *gb, AVCodecContext *avctx, HEVCParamSets *ps)
int	ff_hevc_decode_nal_sps (GetBitContext *gb, AVCodecContext *avctx, HEVCParamSets *ps, int apply_defdispwin)
int	ff_hevc_decode_nal_pps (GetBitContext *gb, AVCodecContext *avctx, HEVCParamSets *ps)
int	ff_hevc_decode_nal_sei (HEVCContext *s)
void	ff_hevc_clear_refs (HEVCContext *s)
	Mark all frames in DPB as unused for reference. More...
void	ff_hevc_flush_dpb (HEVCContext *s)
	Drop all frames currently in DPB. More...
int	ff_hevc_compute_poc (HEVCContext *s, int poc_lsb)
	Compute POC of the current frame and return it. More...
RefPicList *	ff_hevc_get_ref_list (HEVCContext *s, HEVCFrame *frame, int x0, int y0)
int	ff_hevc_frame_rps (HEVCContext *s)
	Construct the reference picture sets for the current frame. More...
int	ff_hevc_slice_rpl (HEVCContext *s)
	Construct the reference picture list(s) for the current slice. More...
void	ff_hevc_save_states (HEVCContext *s, int ctb_addr_ts)
void	ff_hevc_cabac_init (HEVCContext *s, int ctb_addr_ts)
int	ff_hevc_sao_merge_flag_decode (HEVCContext *s)
int	ff_hevc_sao_type_idx_decode (HEVCContext *s)
int	ff_hevc_sao_band_position_decode (HEVCContext *s)
int	ff_hevc_sao_offset_abs_decode (HEVCContext *s)
int	ff_hevc_sao_offset_sign_decode (HEVCContext *s)
int	ff_hevc_sao_eo_class_decode (HEVCContext *s)
int	ff_hevc_end_of_slice_flag_decode (HEVCContext *s)
int	ff_hevc_cu_transquant_bypass_flag_decode (HEVCContext *s)
int	ff_hevc_skip_flag_decode (HEVCContext *s, int x0, int y0, int x_cb, int y_cb)
int	ff_hevc_pred_mode_decode (HEVCContext *s)
int	ff_hevc_split_coding_unit_flag_decode (HEVCContext *s, int ct_depth, int x0, int y0)
int	ff_hevc_part_mode_decode (HEVCContext *s, int log2_cb_size)
int	ff_hevc_pcm_flag_decode (HEVCContext *s)
int	ff_hevc_prev_intra_luma_pred_flag_decode (HEVCContext *s)
int	ff_hevc_mpm_idx_decode (HEVCContext *s)
int	ff_hevc_rem_intra_luma_pred_mode_decode (HEVCContext *s)
int	ff_hevc_intra_chroma_pred_mode_decode (HEVCContext *s)
int	ff_hevc_merge_idx_decode (HEVCContext *s)
int	ff_hevc_merge_flag_decode (HEVCContext *s)
int	ff_hevc_inter_pred_idc_decode (HEVCContext *s, int nPbW, int nPbH)
int	ff_hevc_ref_idx_lx_decode (HEVCContext *s, int num_ref_idx_lx)
int	ff_hevc_mvp_lx_flag_decode (HEVCContext *s)
int	ff_hevc_no_residual_syntax_flag_decode (HEVCContext *s)
int	ff_hevc_split_transform_flag_decode (HEVCContext *s, int log2_trafo_size)
int	ff_hevc_cbf_cb_cr_decode (HEVCContext *s, int trafo_depth)
int	ff_hevc_cbf_luma_decode (HEVCContext *s, int trafo_depth)
int	ff_hevc_log2_res_scale_abs (HEVCContext *s, int idx)
int	ff_hevc_res_scale_sign_flag (HEVCContext *s, int idx)
int	ff_hevc_frame_nb_refs (HEVCContext *s)
	Get the number of candidate references for the current frame. More...
int	ff_hevc_set_new_ref (HEVCContext *s, AVFrame **frame, int poc)
int	ff_hevc_output_frame (HEVCContext *s, AVFrame *frame, int flush)
	Find next frame in output order and put a reference to it in frame. More...
void	ff_hevc_bump_frame (HEVCContext *s)
void	ff_hevc_unref_frame (HEVCContext *s, HEVCFrame *frame, int flags)
void	ff_hevc_set_neighbour_available (HEVCContext *s, int x0, int y0, int nPbW, int nPbH)
void	ff_hevc_luma_mv_merge_mode (HEVCContext *s, int x0, int y0, int nPbW, int nPbH, int log2_cb_size, int part_idx, int merge_idx, MvField *mv)
void	ff_hevc_luma_mv_mvp_mode (HEVCContext *s, int x0, int y0, int nPbW, int nPbH, int log2_cb_size, int part_idx, int merge_idx, MvField *mv, int mvp_lx_flag, int LX)
void	ff_hevc_set_qPy (HEVCContext *s, int xBase, int yBase, int log2_cb_size)
void	ff_hevc_deblocking_boundary_strengths (HEVCContext *s, int x0, int y0, int log2_trafo_size)
int	ff_hevc_cu_qp_delta_sign_flag (HEVCContext *s)
int	ff_hevc_cu_qp_delta_abs (HEVCContext *s)
int	ff_hevc_cu_chroma_qp_offset_flag (HEVCContext *s)
int	ff_hevc_cu_chroma_qp_offset_idx (HEVCContext *s)
void	ff_hevc_hls_filter (HEVCContext *s, int x, int y, int ctb_size)
void	ff_hevc_hls_filters (HEVCContext *s, int x_ctb, int y_ctb, int ctb_size)
void	ff_hevc_hls_residual_coding (HEVCContext *s, int x0, int y0, int log2_trafo_size, enum ScanType scan_idx, int c_idx)
void	ff_hevc_hls_mvd_coding (HEVCContext *s, int x0, int y0, int log2_cb_size)
int	ff_hevc_extract_rbsp (HEVCContext *s, const uint8_t *src, int length, HEVCNAL *nal)
	Extract the raw (unescaped) HEVC bitstream. More...
int	ff_hevc_split_packet (HEVCContext *s, HEVCPacket *pkt, const uint8_t *buf, int length, AVCodecContext *avctx, int is_nalff, int nal_length_size)
	Split an input packet into NAL units. More...
int	ff_hevc_encode_nal_vps (HEVCVPS *vps, unsigned int id, uint8_t *buf, int buf_size)

Variables
const uint8_t	ff_hevc_qpel_extra_before [4]
const uint8_t	ff_hevc_qpel_extra_after [4]
const uint8_t	ff_hevc_qpel_extra [4]
const uint8_t	ff_hevc_diag_scan4x4_x [16]
const uint8_t	ff_hevc_diag_scan4x4_y [16]
const uint8_t	ff_hevc_diag_scan8x8_x [64]
const uint8_t	ff_hevc_diag_scan8x8_y [64]

Macro Definition Documentation

#define MAX_DPB_SIZE   16

Definition at line 39 of file hevc.h.

Referenced by ff_hevc_decode_nal_vps(), and ff_hevc_parse_sps().

#define MAX_REFS   16

Definition at line 40 of file hevc.h.

Referenced by ff_hevc_decode_short_term_rps(), ff_hevc_slice_rpl(), and hls_slice_header().

#define MAX_NB_THREADS   16

Definition at line 42 of file hevc.h.

#define SHIFT_CTB_WPP   2

Definition at line 43 of file hevc.h.

Referenced by hls_decode_entry_wpp().

#define MAX_SUB_LAYERS   7

7.4.2.1

Definition at line 48 of file hevc.h.

Referenced by ff_hevc_decode_nal_vps(), ff_hevc_parse_sps(), generate_fake_vps(), and hvcc_parse_ptl().

#define MAX_VPS_COUNT   16

Definition at line 49 of file hevc.h.

Referenced by ff_hevc_decode_nal_vps(), ff_hevc_parse_sps(), and hvcc_write().

#define MAX_SPS_COUNT   32

Definition at line 50 of file hevc.h.

#define MAX_PPS_COUNT   256

Definition at line 51 of file hevc.h.

#define MAX_SHORT_TERM_RPS_COUNT   64

Definition at line 52 of file hevc.h.

Referenced by ff_hevc_parse_sps(), and hvcc_parse_sps().

#define MAX_CU_SIZE   128

Definition at line 53 of file hevc.h.

#define MAX_TRANSFORM_DEPTH   5

Definition at line 56 of file hevc.h.

#define MAX_TB_SIZE   32

Definition at line 58 of file hevc.h.

Referenced by intra_pred(), and pred_angular().

#define MAX_LOG2_CTB_SIZE   6

Definition at line 59 of file hevc.h.

Referenced by ff_hevc_parse_sps().

#define MAX_QP   51

Definition at line 60 of file hevc.h.

Referenced by deblocking_filter_CTB().

#define DEFAULT_INTRA_TC_OFFSET   2

Definition at line 61 of file hevc.h.

Referenced by chroma_tc().

#define HEVC_CONTEXTS   199

Definition at line 63 of file hevc.h.

Referenced by cabac_init_state(), ff_hevc_save_states(), hevc_init_context(), and load_states().

#define MRG_MAX_NUM_CANDS   5

Definition at line 65 of file hevc.h.

Referenced by ff_hevc_luma_mv_merge_mode().

#define L0   0

Definition at line 67 of file hevc.h.

Referenced by fill_pred_weight_table(), hevc_luma_mv_mvp_mode(), hls_slice_header(), pred_weight_table(), and vaapi_hevc_decode_slice().

#define L1   1

Definition at line 68 of file hevc.h.

Referenced by derive_temporal_colocated_mvs(), fill_pred_weight_table(), hevc_luma_mv_mvp_mode(), hls_slice_header(), pred_weight_table(), and vaapi_hevc_decode_slice().

#define EPEL_EXTRA_BEFORE   1

Definition at line 70 of file hevc.h.

Referenced by chroma_mc_bi(), chroma_mc_uni(), put_hevc_epel_bi_hv(), put_hevc_epel_bi_w_hv(), put_hevc_epel_hv(), put_hevc_epel_uni_hv(), and put_hevc_epel_uni_w_hv().

#define EPEL_EXTRA_AFTER   2

Definition at line 71 of file hevc.h.

Referenced by chroma_mc_bi(), and chroma_mc_uni().

#define EPEL_EXTRA   3

Definition at line 72 of file hevc.h.

Referenced by chroma_mc_bi(), chroma_mc_uni(), put_hevc_epel_bi_hv(), put_hevc_epel_bi_w_hv(), put_hevc_epel_hv(), put_hevc_epel_uni_hv(), and put_hevc_epel_uni_w_hv().

#define QPEL_EXTRA_BEFORE   3

Definition at line 73 of file hevc.h.

Referenced by luma_mc_bi(), luma_mc_uni(), put_hevc_qpel_bi_hv(), put_hevc_qpel_bi_w_hv(), put_hevc_qpel_hv(), put_hevc_qpel_uni_hv(), and put_hevc_qpel_uni_w_hv().

#define QPEL_EXTRA_AFTER   4

Definition at line 74 of file hevc.h.

Referenced by luma_mc_bi(), and luma_mc_uni().

#define QPEL_EXTRA   7

Definition at line 75 of file hevc.h.

Referenced by luma_mc_bi(), luma_mc_uni(), put_hevc_qpel_bi_hv(), put_hevc_qpel_bi_w_hv(), put_hevc_qpel_hv(), put_hevc_qpel_uni_hv(), and put_hevc_qpel_uni_w_hv().

#define EDGE_EMU_BUFFER_STRIDE   80

Definition at line 77 of file hevc.h.

Referenced by chroma_mc_bi(), chroma_mc_uni(), luma_mc_bi(), and luma_mc_uni().

#define SAMPLE	(		tab,
			x,
			y
	)		((tab)[(y) * s->sps->width + (x)])

Value of the luma sample at position (x, y) in the 2D array tab.

Definition at line 82 of file hevc.h.

#define SAMPLE_CTB	(		tab,
			x,
			y
	)		((tab)[(y) * min_cb_width + (x)])

Definition at line 83 of file hevc.h.

Referenced by ff_hevc_skip_flag_decode(), hls_coding_unit(), and hls_prediction_unit().

#define IS_IDR

(

s

)

((s)->nal_unit_type == NAL_IDR_W_RADL || (s)->nal_unit_type == NAL_IDR_N_LP)

Definition at line 85 of file hevc.h.

Referenced by decode_nal_unit(), fill_picture_parameters(), hls_slice_header(), and vdpau_hevc_start_frame().

#define IS_BLA

(

s

)

Value:

((s)->nal_unit_type == NAL_BLA_W_RADL || (s)->nal_unit_type == NAL_BLA_W_LP || \
                   (s)->nal_unit_type == NAL_BLA_N_LP)

Definition at line 86 of file hevc.h.

Referenced by decode_nal_unit(), find_ref_idx(), and hls_slice_header().

#define IS_IRAP

(

s

)

((s)->nal_unit_type >= 16 && (s)->nal_unit_type <= 23)

Definition at line 88 of file hevc.h.

Referenced by fill_picture_parameters(), hevc_frame_start(), hls_slice_header(), and vdpau_hevc_start_frame().

#define HEVC_FRAME_FLAG_OUTPUT   (1 << 0)

Definition at line 713 of file hevc.h.

Referenced by ff_hevc_bump_frame(), ff_hevc_output_frame(), and ff_hevc_set_new_ref().

#define HEVC_FRAME_FLAG_SHORT_REF   (1 << 1)

Definition at line 714 of file hevc.h.

Referenced by ff_hevc_clear_refs(), ff_hevc_frame_rps(), ff_hevc_set_new_ref(), fill_picture_parameters(), fill_vaapi_ReferenceFrames(), mark_ref(), and vdpau_hevc_start_frame().

#define HEVC_FRAME_FLAG_LONG_REF   (1 << 2)

Definition at line 715 of file hevc.h.

Referenced by ff_hevc_clear_refs(), ff_hevc_frame_rps(), fill_picture_parameters(), fill_vaapi_pic(), fill_vaapi_ReferenceFrames(), mark_ref(), and vdpau_hevc_start_frame().

#define HEVC_FRAME_FLAG_BUMPING   (1 << 3)

Definition at line 716 of file hevc.h.

Referenced by ff_hevc_bump_frame(), and ff_hevc_output_frame().

#define BOUNDARY_LEFT_SLICE   (1 << 0)

Definition at line 810 of file hevc.h.

Referenced by ff_hevc_deblocking_boundary_strengths(), and hls_decode_neighbour().

#define BOUNDARY_LEFT_TILE   (1 << 1)

Definition at line 811 of file hevc.h.

Referenced by ff_hevc_deblocking_boundary_strengths(), and hls_decode_neighbour().

#define BOUNDARY_UPPER_SLICE   (1 << 2)

Definition at line 812 of file hevc.h.

Referenced by ff_hevc_deblocking_boundary_strengths(), and hls_decode_neighbour().

#define BOUNDARY_UPPER_TILE   (1 << 3)

Definition at line 813 of file hevc.h.

Referenced by ff_hevc_deblocking_boundary_strengths(), and hls_decode_neighbour().

Enumeration Type Documentation

enum NALUnitType

Table 7-3: NAL unit type codes.

Enumerator
NAL_TRAIL_N
NAL_TRAIL_R
NAL_TSA_N
NAL_TSA_R
NAL_STSA_N
NAL_STSA_R
NAL_RADL_N
NAL_RADL_R
NAL_RASL_N
NAL_RASL_R
NAL_BLA_W_LP
NAL_BLA_W_RADL
NAL_BLA_N_LP
NAL_IDR_W_RADL
NAL_IDR_N_LP
NAL_CRA_NUT
NAL_VPS
NAL_SPS
NAL_PPS
NAL_AUD
NAL_EOS_NUT
NAL_EOB_NUT
NAL_FD_NUT
NAL_SEI_PREFIX
NAL_SEI_SUFFIX

Definition at line 93 of file hevc.h.

enum RPSType

Enumerator
ST_CURR_BEF
ST_CURR_AFT
ST_FOLL
LT_CURR
LT_FOLL
NB_RPS_TYPE

Definition at line 121 of file hevc.h.

enum SliceType

Enumerator
B_SLICE
P_SLICE
I_SLICE

Definition at line 130 of file hevc.h.

enum SyntaxElement

Enumerator
SAO_MERGE_FLAG
SAO_TYPE_IDX
SAO_EO_CLASS
SAO_BAND_POSITION
SAO_OFFSET_ABS
SAO_OFFSET_SIGN
END_OF_SLICE_FLAG
SPLIT_CODING_UNIT_FLAG
CU_TRANSQUANT_BYPASS_FLAG
SKIP_FLAG
CU_QP_DELTA
PRED_MODE_FLAG
PART_MODE
PCM_FLAG
PREV_INTRA_LUMA_PRED_FLAG
MPM_IDX
REM_INTRA_LUMA_PRED_MODE
INTRA_CHROMA_PRED_MODE
MERGE_FLAG
MERGE_IDX
INTER_PRED_IDC
REF_IDX_L0
REF_IDX_L1
ABS_MVD_GREATER0_FLAG
ABS_MVD_GREATER1_FLAG
ABS_MVD_MINUS2
MVD_SIGN_FLAG
MVP_LX_FLAG
NO_RESIDUAL_DATA_FLAG
SPLIT_TRANSFORM_FLAG
CBF_LUMA
CBF_CB_CR
TRANSFORM_SKIP_FLAG
EXPLICIT_RDPCM_FLAG
EXPLICIT_RDPCM_DIR_FLAG
LAST_SIGNIFICANT_COEFF_X_PREFIX
LAST_SIGNIFICANT_COEFF_Y_PREFIX
LAST_SIGNIFICANT_COEFF_X_SUFFIX
LAST_SIGNIFICANT_COEFF_Y_SUFFIX
SIGNIFICANT_COEFF_GROUP_FLAG
SIGNIFICANT_COEFF_FLAG
COEFF_ABS_LEVEL_GREATER1_FLAG
COEFF_ABS_LEVEL_GREATER2_FLAG
COEFF_ABS_LEVEL_REMAINING
COEFF_SIGN_FLAG
LOG2_RES_SCALE_ABS
RES_SCALE_SIGN_FLAG
CU_CHROMA_QP_OFFSET_FLAG
CU_CHROMA_QP_OFFSET_IDX

Definition at line 136 of file hevc.h.

enum PartMode

Enumerator
PART_2Nx2N
PART_2NxN
PART_Nx2N
PART_NxN
PART_2NxnU
PART_2NxnD
PART_nLx2N
PART_nRx2N

Definition at line 188 of file hevc.h.

enum PredMode

Enumerator
MODE_INTER
MODE_INTRA
MODE_SKIP

Definition at line 199 of file hevc.h.

enum InterPredIdc

Enumerator
PRED_L0
PRED_L1
PRED_BI

Definition at line 205 of file hevc.h.

enum PredFlag

Enumerator
PF_INTRA
PF_L0
PF_L1
PF_BI

Definition at line 211 of file hevc.h.

enum IntraPredMode

Enumerator
INTRA_PLANAR
INTRA_DC
INTRA_ANGULAR_2
INTRA_ANGULAR_3
INTRA_ANGULAR_4
INTRA_ANGULAR_5
INTRA_ANGULAR_6
INTRA_ANGULAR_7
INTRA_ANGULAR_8
INTRA_ANGULAR_9
INTRA_ANGULAR_10
INTRA_ANGULAR_11
INTRA_ANGULAR_12
INTRA_ANGULAR_13
INTRA_ANGULAR_14
INTRA_ANGULAR_15
INTRA_ANGULAR_16
INTRA_ANGULAR_17
INTRA_ANGULAR_18
INTRA_ANGULAR_19
INTRA_ANGULAR_20
INTRA_ANGULAR_21
INTRA_ANGULAR_22
INTRA_ANGULAR_23
INTRA_ANGULAR_24
INTRA_ANGULAR_25
INTRA_ANGULAR_26
INTRA_ANGULAR_27
INTRA_ANGULAR_28
INTRA_ANGULAR_29
INTRA_ANGULAR_30
INTRA_ANGULAR_31
INTRA_ANGULAR_32
INTRA_ANGULAR_33
INTRA_ANGULAR_34
VERT_PRED
HOR_PRED
DC_PRED
DIAG_DOWN_LEFT_PRED
DIAG_DOWN_RIGHT_PRED
VERT_RIGHT_PRED
HOR_DOWN_PRED
VERT_LEFT_PRED
HOR_UP_PRED
TM_VP8_PRED
LEFT_DC_PRED
TOP_DC_PRED
DC_128_PRED
DC_127_PRED
DC_129_PRED
N_INTRA_PRED_MODES

Definition at line 218 of file hevc.h.

enum SAOType

Enumerator
SAO_NOT_APPLIED
SAO_BAND
SAO_EDGE
SAO_APPLIED

Definition at line 256 of file hevc.h.

enum SAOEOClass

Enumerator
SAO_EO_HORIZ
SAO_EO_VERT
SAO_EO_135D
SAO_EO_45D

Definition at line 263 of file hevc.h.

enum ScanType

Enumerator
SCAN_DIAG
SCAN_HORIZ
SCAN_VERT

Definition at line 270 of file hevc.h.

Function Documentation

int ff_hevc_decode_short_term_rps	(	GetBitContext *	gb,
		AVCodecContext *	avctx,
		ShortTermRPS *	rps,
		const HEVCSPS *	sps,
		int	is_slice_header
	)

Definition at line 110 of file hevc_ps.c.

Referenced by ff_hevc_parse_sps(), and hls_slice_header().

int ff_hevc_parse_sps	(	HEVCSPS *	sps,
		GetBitContext *	gb,
		unsigned int *	sps_id,
		int	apply_defdispwin,
		AVBufferRef **	vps_list,
		AVCodecContext *	avctx
	)

Parse the SPS from the bitstream into the provided HEVCSPS struct.

Parameters

sps_id	the SPS id will be written here
apply_defdispwin	if set 1, the default display window from the VUI will be applied to the video dimensions
vps_list	if non-NULL, this function will validate that the SPS refers to an existing VPS

Definition at line 796 of file hevc_ps.c.

Referenced by ff_hevc_decode_nal_sps(), and generate_fake_vps().

int ff_hevc_decode_nal_vps	(	GetBitContext *	gb,
		AVCodecContext *	avctx,
		HEVCParamSets *	ps
	)

Definition at line 393 of file hevc_ps.c.

Referenced by decode_nal_unit(), and parse_nal_units().

int ff_hevc_decode_nal_sps	(	GetBitContext *	gb,
		AVCodecContext *	avctx,
		HEVCParamSets *	ps,
		int	apply_defdispwin
	)

Definition at line 1150 of file hevc_ps.c.

Referenced by decode_nal_unit(), and parse_nal_units().

int ff_hevc_decode_nal_pps	(	GetBitContext *	gb,
		AVCodecContext *	avctx,
		HEVCParamSets *	ps
	)

Definition at line 1381 of file hevc_ps.c.

Referenced by decode_nal_unit(), and parse_nal_units().

int ff_hevc_decode_nal_sei

(

HEVCContext *

s

)

Definition at line 253 of file hevc_sei.c.

Referenced by decode_nal_unit().

void ff_hevc_clear_refs

(

HEVCContext *

s

)

Mark all frames in DPB as unused for reference.

Definition at line 65 of file hevc_refs.c.

Referenced by hls_slice_header().

void ff_hevc_flush_dpb

(

HEVCContext *

s

)

Drop all frames currently in DPB.

Definition at line 74 of file hevc_refs.c.

Referenced by hevc_decode_flush().

int ff_hevc_compute_poc	(	HEVCContext *	s,
		int	poc_lsb
	)

Compute POC of the current frame and return it.

Definition at line 518 of file hevc_refs.c.

Referenced by hls_slice_header().

RefPicList* ff_hevc_get_ref_list	(	HEVCContext *	s,
		HEVCFrame *	frame,
		int	x0,
		int	y0
	)

Definition at line 56 of file hevc_refs.c.

Referenced by ff_hevc_deblocking_boundary_strengths().

int ff_hevc_frame_rps

(

HEVCContext *

s

)

Construct the reference picture sets for the current frame.

Definition at line 458 of file hevc_refs.c.

Referenced by hevc_frame_start().

int ff_hevc_slice_rpl

(

HEVCContext *

s

)

Construct the reference picture list(s) for the current slice.

Definition at line 298 of file hevc_refs.c.

Referenced by decode_nal_unit().

void ff_hevc_save_states	(	HEVCContext *	s,
		int	ctb_addr_ts
	)

Definition at line 448 of file hevc_cabac.c.

Referenced by hls_decode_entry(), and hls_decode_entry_wpp().

void ff_hevc_cabac_init	(	HEVCContext *	s,
		int	ctb_addr_ts
	)

Definition at line 502 of file hevc_cabac.c.

Referenced by hls_decode_entry(), and hls_decode_entry_wpp().

int ff_hevc_sao_merge_flag_decode

(

HEVCContext *

s

)

Definition at line 548 of file hevc_cabac.c.

Referenced by hls_sao_param().

int ff_hevc_sao_type_idx_decode

(

HEVCContext *

s

)

Definition at line 553 of file hevc_cabac.c.

Referenced by hls_sao_param().

int ff_hevc_sao_band_position_decode

(

HEVCContext *

s

)

Definition at line 563 of file hevc_cabac.c.

Referenced by hls_sao_param().

int ff_hevc_sao_offset_abs_decode

(

HEVCContext *

s

)

Definition at line 573 of file hevc_cabac.c.

Referenced by hls_sao_param().

int ff_hevc_sao_offset_sign_decode

(

HEVCContext *

s

)

Definition at line 583 of file hevc_cabac.c.

Referenced by hls_sao_param().

int ff_hevc_sao_eo_class_decode

(

HEVCContext *

s

)

Definition at line 588 of file hevc_cabac.c.

Referenced by hls_sao_param().

int ff_hevc_end_of_slice_flag_decode

(

HEVCContext *

s

)

Definition at line 595 of file hevc_cabac.c.

Referenced by hls_coding_quadtree().

int ff_hevc_cu_transquant_bypass_flag_decode

(

HEVCContext *

s

)

Definition at line 600 of file hevc_cabac.c.

Referenced by hls_coding_unit().

int ff_hevc_skip_flag_decode	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	x_cb,
		int	y_cb
	)

Definition at line 605 of file hevc_cabac.c.

Referenced by hls_coding_unit().

int ff_hevc_pred_mode_decode

(

HEVCContext *

s

)

Definition at line 666 of file hevc_cabac.c.

Referenced by hls_coding_unit().

int ff_hevc_split_coding_unit_flag_decode	(	HEVCContext *	s,
		int	ct_depth,
		int	x0,
		int	y0
	)

Definition at line 671 of file hevc_cabac.c.

Referenced by hls_coding_quadtree().

int ff_hevc_part_mode_decode	(	HEVCContext *	s,
		int	log2_cb_size
	)

Definition at line 690 of file hevc_cabac.c.

Referenced by hls_coding_unit().

int ff_hevc_pcm_flag_decode

(

HEVCContext *

s

)

Definition at line 727 of file hevc_cabac.c.

Referenced by hls_coding_unit().

int ff_hevc_prev_intra_luma_pred_flag_decode

(

HEVCContext *

s

)

Definition at line 732 of file hevc_cabac.c.

Referenced by intra_prediction_unit().

int ff_hevc_mpm_idx_decode

(

HEVCContext *

s

)

Definition at line 737 of file hevc_cabac.c.

Referenced by intra_prediction_unit().

int ff_hevc_rem_intra_luma_pred_mode_decode

(

HEVCContext *

s

)

Definition at line 745 of file hevc_cabac.c.

Referenced by intra_prediction_unit().

int ff_hevc_intra_chroma_pred_mode_decode

(

HEVCContext *

s

)

Definition at line 755 of file hevc_cabac.c.

Referenced by intra_prediction_unit().

int ff_hevc_merge_idx_decode

(

HEVCContext *

s

)

Definition at line 766 of file hevc_cabac.c.

Referenced by hls_prediction_unit().

int ff_hevc_merge_flag_decode

(

HEVCContext *

s

)

Definition at line 777 of file hevc_cabac.c.

Referenced by hls_prediction_unit().

int ff_hevc_inter_pred_idc_decode	(	HEVCContext *	s,
		int	nPbW,
		int	nPbH
	)

Definition at line 782 of file hevc_cabac.c.

Referenced by hevc_luma_mv_mvp_mode().

int ff_hevc_ref_idx_lx_decode	(	HEVCContext *	s,
		int	num_ref_idx_lx
	)

Definition at line 792 of file hevc_cabac.c.

Referenced by hevc_luma_mv_mvp_mode().

int ff_hevc_mvp_lx_flag_decode

(

HEVCContext *

s

)

Definition at line 808 of file hevc_cabac.c.

Referenced by hevc_luma_mv_mvp_mode().

int ff_hevc_no_residual_syntax_flag_decode

(

HEVCContext *

s

)

Definition at line 813 of file hevc_cabac.c.

Referenced by hls_coding_unit().

int ff_hevc_split_transform_flag_decode	(	HEVCContext *	s,
		int	log2_trafo_size
	)

Definition at line 849 of file hevc_cabac.c.

Referenced by hls_transform_tree().

int ff_hevc_cbf_cb_cr_decode	(	HEVCContext *	s,
		int	trafo_depth
	)

Definition at line 854 of file hevc_cabac.c.

Referenced by hls_transform_tree().

int ff_hevc_cbf_luma_decode	(	HEVCContext *	s,
		int	trafo_depth
	)

Definition at line 859 of file hevc_cabac.c.

Referenced by hls_transform_tree().

int ff_hevc_log2_res_scale_abs	(	HEVCContext *	s,
		int	idx
	)

Definition at line 879 of file hevc_cabac.c.

Referenced by hls_cross_component_pred().

int ff_hevc_res_scale_sign_flag	(	HEVCContext *	s,
		int	idx
	)

Definition at line 888 of file hevc_cabac.c.

Referenced by hls_cross_component_pred().

int ff_hevc_frame_nb_refs

(

HEVCContext *

s

)

Get the number of candidate references for the current frame.

Definition at line 541 of file hevc_refs.c.

Referenced by hls_slice_header(), and vdpau_hevc_start_frame().

int ff_hevc_set_new_ref	(	HEVCContext *	s,
		AVFrame **	frame,
		int	poc
	)

Definition at line 134 of file hevc_refs.c.

Referenced by hevc_frame_start().

int ff_hevc_output_frame	(	HEVCContext *	s,
		AVFrame *	frame,
		int	flush
	)

Find next frame in output order and put a reference to it in frame.

Returns

1 if a frame was output, 0 otherwise

Definition at line 170 of file hevc_refs.c.

Referenced by hevc_decode_frame(), and hevc_frame_start().

void ff_hevc_bump_frame

(

HEVCContext *

s

)

Definition at line 240 of file hevc_refs.c.

Referenced by hevc_frame_start().

void ff_hevc_unref_frame	(	HEVCContext *	s,
		HEVCFrame *	frame,
		int	flags
	)

Definition at line 31 of file hevc_refs.c.

Referenced by alloc_frame(), ff_hevc_clear_refs(), ff_hevc_flush_dpb(), ff_hevc_frame_rps(), ff_hevc_output_frame(), hevc_decode_frame(), hevc_decode_free(), hevc_frame_start(), hevc_ref_frame(), and hevc_update_thread_context().

void ff_hevc_set_neighbour_available	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	nPbW,
		int	nPbH
	)

Definition at line 41 of file hevc_mvs.c.

Referenced by ff_hevc_luma_mv_merge_mode(), hevc_luma_mv_mvp_mode(), and hls_transform_unit().

void ff_hevc_luma_mv_merge_mode	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	nPbW,
		int	nPbH,
		int	log2_cb_size,
		int	part_idx,
		int	merge_idx,
		MvField *	mv
	)

Definition at line 478 of file hevc_mvs.c.

Referenced by hls_prediction_unit().

void ff_hevc_luma_mv_mvp_mode	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	nPbW,
		int	nPbH,
		int	log2_cb_size,
		int	part_idx,
		int	merge_idx,
		MvField *	mv,
		int	mvp_lx_flag,
		int	LX
	)

Definition at line 581 of file hevc_mvs.c.

Referenced by hevc_luma_mv_mvp_mode().

void ff_hevc_set_qPy	(	HEVCContext *	s,
		int	xBase,
		int	yBase,
		int	log2_cb_size
	)

Definition at line 122 of file hevc_filter.c.

Referenced by hls_coding_unit(), and hls_transform_unit().

void ff_hevc_deblocking_boundary_strengths	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	log2_trafo_size
	)

Definition at line 715 of file hevc_filter.c.

Referenced by hls_coding_unit(), hls_pcm_sample(), and hls_transform_tree().

int ff_hevc_cu_qp_delta_sign_flag

(

HEVCContext *

s

)

Definition at line 645 of file hevc_cabac.c.

Referenced by hls_transform_unit().

int ff_hevc_cu_qp_delta_abs

(

HEVCContext *

s

)

Definition at line 620 of file hevc_cabac.c.

Referenced by hls_transform_unit().

int ff_hevc_cu_chroma_qp_offset_flag

(

HEVCContext *

s

)

Definition at line 650 of file hevc_cabac.c.

Referenced by hls_transform_unit().

int ff_hevc_cu_chroma_qp_offset_idx

(

HEVCContext *

s

)

Definition at line 655 of file hevc_cabac.c.

Referenced by hls_transform_unit().

void ff_hevc_hls_filter	(	HEVCContext *	s,
		int	x,
		int	y,
		int	ctb_size
	)

Definition at line 843 of file hevc_filter.c.

Referenced by ff_hevc_hls_filters(), hls_decode_entry(), and hls_decode_entry_wpp().

void ff_hevc_hls_filters	(	HEVCContext *	s,
		int	x_ctb,
		int	y_ctb,
		int	ctb_size
	)

Definition at line 868 of file hevc_filter.c.

Referenced by hls_decode_entry(), and hls_decode_entry_wpp().

void ff_hevc_hls_residual_coding	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	log2_trafo_size,
		enum ScanType	scan_idx,
		int	c_idx
	)

Definition at line 1002 of file hevc_cabac.c.

Referenced by hls_transform_unit().

void ff_hevc_hls_mvd_coding	(	HEVCContext *	s,
		int	x0,
		int	y0,
		int	log2_cb_size
	)

Definition at line 1512 of file hevc_cabac.c.

Referenced by hevc_luma_mv_mvp_mode().

int ff_hevc_extract_rbsp	(	HEVCContext *	s,
		const uint8_t *	src,
		int	length,
		HEVCNAL *	nal
	)

Extract the raw (unescaped) HEVC bitstream.

Definition at line 32 of file hevc_parse.c.

Referenced by ff_hevc_split_packet(), and generate_fake_vps().

int ff_hevc_split_packet	(	HEVCContext *	s,
		HEVCPacket *	pkt,
		const uint8_t *	buf,
		int	length,
		AVCodecContext *	avctx,
		int	is_nalff,
		int	nal_length_size
	)

Split an input packet into NAL units.

Definition at line 208 of file hevc_parse.c.

Referenced by decode_nal_units(), and parse_nal_units().

int ff_hevc_encode_nal_vps	(	HEVCVPS *	vps,
		unsigned int	id,
		uint8_t *	buf,
		int	buf_size
	)

Definition at line 66 of file hevc_ps_enc.c.

Referenced by generate_fake_vps().

Variable Documentation

const uint8_t ff_hevc_qpel_extra_before[4]

const uint8_t ff_hevc_qpel_extra_after[4]

const uint8_t ff_hevc_qpel_extra[4]

const uint8_t ff_hevc_diag_scan4x4_x[16]

Definition at line 25 of file hevc_data.c.

Referenced by ff_hevc_hls_residual_coding(), fill_scaling_lists(), scaling_list_data(), vaapi_hevc_start_frame(), and vdpau_hevc_start_frame().

const uint8_t ff_hevc_diag_scan4x4_y[16]

Definition at line 32 of file hevc_data.c.

Referenced by ff_hevc_hls_residual_coding(), fill_scaling_lists(), scaling_list_data(), vaapi_hevc_start_frame(), and vdpau_hevc_start_frame().

const uint8_t ff_hevc_diag_scan8x8_x[64]

Definition at line 39 of file hevc_data.c.

Referenced by ff_hevc_hls_residual_coding(), fill_scaling_lists(), scaling_list_data(), vaapi_hevc_start_frame(), and vdpau_hevc_start_frame().

const uint8_t ff_hevc_diag_scan8x8_y[64]

Definition at line 58 of file hevc_data.c.

Referenced by ff_hevc_hls_residual_coding(), fill_scaling_lists(), scaling_list_data(), vaapi_hevc_start_frame(), and vdpau_hevc_start_frame().